fix lint

integration/benchmark_fs/Dockerfile

@@ -1,3 +1,16 @@
+# Copyright 2020 Google, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 FROM bash:4.4
 
 ARG NUM

integration/benchmark_test.go

@@ -134,7 +134,8 @@ func TestSnapshotBenchmarkGcloud(t *testing.T) {
 			wg.Add(1)
 			var err error
 			go func(num int, err error) {
-				dir, err := runInGcloud(contextDir, num)
+				var dir string
+				dir, err = runInGcloud(contextDir, num)
 				if err != nil {
 					return
 				}